[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 24 18:02:14 UTC 2024
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 25 May, 2024
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 951918
Prefixes after maximum aggregation (per Origin AS): 362006
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 462355
Total ASes present in the Internet Routing Table: 75825
Prefixes per ASN: 12.55
Origin-only ASes present in the Internet Routing Table: 64977
Origin ASes announcing only one prefix: 26683
Transit ASes present in the Internet Routing Table: 10848
Transit-only ASes present in the Internet Routing Table: 530
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 60
Max AS path prepend of ASN ( 53153) 57
Prefixes from unregistered ASNs in the Routing Table: 1128
Number of instances of unregistered ASNs: 1130
Number of 32-bit ASNs allocated by the RIRs: 44555
Number of 32-bit ASNs visible in the Routing Table: 36475
Prefixes from 32-bit ASNs in the Routing Table: 186932
Number of bogon 32-bit ASNs visible in the Routing Table: 14
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 735
Number of addresses announced to Internet: 3027222144
Equivalent to 180 /8s, 111 /16s and 190 /24s
Percentage of available address space announced: 81.8
Percentage of allocated address space announced: 81.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 312842
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 255008
Total APNIC prefixes after maximum aggregation: 74071
APNIC Deaggregation factor: 3.44
Prefixes being announced from the APNIC address blocks: 247211
Unique aggregates announced from the APNIC address blocks: 101262
APNIC Region origin ASes present in the Internet Routing Table: 14174
APNIC Prefixes per ASN: 17.44
APNIC Region origin ASes announcing only one prefix: 4325
APNIC Region transit ASes present in the Internet Routing Table: 1906
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9567
Number of APNIC addresses announced to Internet: 761742464
Equivalent to 45 /8s, 103 /16s and 68 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 276627
Total ARIN prefixes after maximum aggregation: 124971
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 281377
Unique aggregates announced from the ARIN address blocks: 133879
ARIN Region origin ASes present in the Internet Routing Table: 19156
ARIN Prefixes per ASN: 14.69
ARIN Region origin ASes announcing only one prefix: 6959
ARIN Region transit ASes present in the Internet Routing Table: 1993
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4907
Number of ARIN addresses announced to Internet: 1268025856
Equivalent to 75 /8s, 148 /16s and 138 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 266394
Total RIPE prefixes after maximum aggregation: 127048
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 260966
Unique aggregates announced from the RIPE address blocks: 163744
RIPE Region origin ASes present in the Internet Routing Table: 28617
RIPE Prefixes per ASN: 9.12
RIPE Region origin ASes announcing only one prefix: 12104
RIPE Region transit ASes present in the Internet Routing Table: 3971
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11804
Number of RIPE addresses announced to Internet: 712588032
Equivalent to 42 /8s, 121 /16s and 59 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 121471
Total LACNIC prefixes after maximum aggregation: 29048
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 119684
Unique aggregates announced from the LACNIC address blocks: 49775
LACNIC Region origin ASes present in the Internet Routing Table: 11090
LACNIC Prefixes per ASN: 10.79
LACNIC Region origin ASes announcing only one prefix: 2639
LACNIC Region transit ASes present in the Internet Routing Table: 2422
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 60
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8985
Number of LACNIC addresses announced to Internet: 177107200
Equivalent to 10 /8s, 142 /16s and 113 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 31290
Total AfriNIC prefixes after maximum aggregation: 6173
AfriNIC Deaggregation factor: 5.07
Prefixes being announced from the AfriNIC address blocks: 41945
Unique aggregates announced from the AfriNIC address blocks: 13189
AfriNIC Region origin ASes present in the Internet Routing Table: 1844
AfriNIC Prefixes per ASN: 22.75
AfriNIC Region origin ASes announcing only one prefix: 656
AfriNIC Region transit ASes present in the Internet Routing Table: 353
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1212
Number of AfriNIC addresses announced to Internet: 107238144
Equivalent to 6 /8s, 100 /16s and 83 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 9842 8743 67 CHINAMOBILE-CN China Mobile Communicati
7545 5639 777 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4933 4192 74 ERX-CERNET-BKB China Education and Rese
18403 4420 347 23 FPT-AS-AP FPT Telecom Company, VN
7552 3929 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 3749 509 260 BBIL-AP BHARTI Airtel Ltd., IN
7713 3622 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3286 1872 99 VNPT-AS-VN VNPT Corp, VN
24560 2794 863 374 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2292 11522 578 KIXS-AS-KR Korea Telecom, KR
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 9968 11387 3519 AMAZON-02, US
11492 4622 307 596 CABLEONE, US
7155 4167 287 89 VIASAT-SP-BACKBONE, US
6327 3594 1320 79 SHAW, CA
22773 3484 3043 235 ASN-CXA-ALL-CCI-22773-RDC, US
174 3423 8774 865 COGENT-174, US
749 3223 54904 2475 DNIC-AS-00749, US
16625 3099 1327 2223 AKAMAI-AS, US
7018 2841 23661 1793 ATT-INTERNET4, US
367 2773 3399 1293 DNIC-ASBLK-00306-00371, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7760 1708 145 UNI2-AS, ES
39891 4758 286 60 ALJAWWALSTC-AS, SA
20940 3837 3396 133 AKAMAI-ASN1, NL
9009 3501 300 1744 M247, RO
12389 2988 2305 902 ROSTELECOM-AS, RU
8551 2634 368 35 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
34984 2341 362 581 TELLCOM-AS, TR
212238 1623 119 1187 CDNEXT, GB
13188 1607 100 26 TRIOLAN, UA
8452 1551 1852 14 TE-AS TE-AS, EG
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 12176 3320 489 UNINET, MX
10620 3509 492 941 Telmex Colombia S.A., CO
13999 2543 355 665 Mega Cable, S.A. de C.V., MX
11830 2003 369 64 Instituto Costarricense de Electricidad
28573 1350 2313 251 Claro NXT Telecomunicacoes Ltda, BR
3816 1322 789 190 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1189 177 438 Techtel LMDS Comunicaciones Interactiva
6503 1125 314 478 Axtel, S.A.B. de C.V., MX
6147 1084 369 22 Telefonica del Peru S.A.A., PE
26615 1073 2503 53 TIM SA, BR
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24835 1548 545 28 RAYA-AS, EG
24863 1504 389 20 LINKdotNET-AS, EG
36992 1378 1520 281 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
29571 1208 77 61 ORANGE-COTE-IVOIRE, CI
36935 935 521 42 Vodafone-, EG
6713 556 1861 35 IAM-AS, MA
15399 531 56 56 WANANCHI-, KE
36914 481 82 3 KENET-AS, KE
37342 467 32 1 MOVITEL, MZ
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 12176 3320 489 UNINET, MX
16509 9968 11387 3519 AMAZON-02, US
9808 9842 8743 67 CHINAMOBILE-CN China Mobile Communicati
12479 7760 1708 145 UNI2-AS, ES
7545 5639 777 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4933 4192 74 ERX-CERNET-BKB China Education and Rese
39891 4758 286 60 ALJAWWALSTC-AS, SA
11492 4622 307 596 CABLEONE, US
18403 4420 347 23 FPT-AS-AP FPT Telecom Company, VN
7155 4167 287 89 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9842 9775 CHINAMOBILE-CN China Mobile Communications Grou
12479 7760 7615 UNI2-AS, ES
16509 9968 6449 AMAZON-02, US
7545 5639 4965 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4933 4859 ERX-CERNET-BKB China Education and Research Net
39891 4758 4698 ALJAWWALSTC-AS, SA
18403 4420 4397 FPT-AS-AP FPT Telecom Company, VN
7155 4167 4078 VIASAT-SP-BACKBONE, US
11492 4622 4026 CABLEONE, US
7552 3929 3908 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.147.240.0/24 Origin: 398208 RESERVED, ZZ
23.147.240.0/24 Transit: 19930 EQUINIX-EC-CH, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
Complete listing at https://thyme.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:14 /10:37 /11:93 /12:298
/13:577 /14:1170 /15:2055 /16:13263 /17:8271 /18:13758
/19:24762 /20:44309 /21:51709 /22:111506 /23:99470 /24:579880
/25:730 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
12479 6854 7760 UNI2-AS, ES
8151 6214 12176 UNINET, MX
11492 3531 4622 CABLEONE, US
39891 3440 4758 ALJAWWALSTC-AS, SA
6327 3390 3594 SHAW, CA
7155 3111 4167 VIASAT-SP-BACKBONE, US
22773 2579 3484 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2162 2507 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2138 3509 Telmex Colombia S.A., CO
16509 2130 9968 AMAZON-02, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2316 2:1522 3:350 4:6 5:4571 6:162
7:6 8:1516 9:1 11:172 12:1465 13:359
14:2410 15:319 16:211 17:367 18:766 20:378
21:4 22:188 23:6773 24:2721 25:2 27:2548
29:19 31:2576 32:48 34:61 35:134 36:2292
37:4463 38:7544 39:896 40:122 41:4100 42:2154
43:2366 44:317 45:17131 46:4480 47:306 49:1959
50:1913 51:580 52:1586 54:313 55:878 56:5
57:178 58:2091 59:1253 60:1027 61:2599 62:2690
63:1888 64:5518 65:2346 66:4691 67:2996 68:1320
69:4103 70:1184 71:584 72:2873 74:2591 75:1551
76:618 77:2478 78:1853 79:2514 80:2195 81:2015
82:1615 83:1346 84:1666 85:3150 86:895 87:2289
88:1253 89:4062 90:685 91:8124 92:2310 93:2699
94:3625 95:4191 96:1275 97:314 98:1034 99:741
100:73 101:1179 102:3404 103:32610 104:4779 105:678
106:958 107:2764 108:1147 109:4179 110:2145 111:3268
112:2068 113:1784 114:1797 115:2075 116:1900 117:2647
118:2828 119:1976 120:1802 121:1341 122:2694 123:2233
124:1634 125:2885 126:32 128:1468 129:908 130:1147
131:1833 132:809 133:412 134:1741 135:322 136:1054
137:1069 138:2811 139:1533 140:1378 141:1349 142:1573
143:1562 144:1014 145:366 146:2064 147:1943 148:2512
149:2753 150:1038 151:1337 152:2161 153:524 154:6614
155:1455 156:2290 157:1795 158:1151 159:2336 160:2654
161:1693 162:3552 163:1705 164:1653 165:2146 166:1180
167:1789 168:3957 169:802 170:4882 171:1047 172:3856
173:3044 174:894 175:1218 176:3691 177:4744 178:3708
179:2203 180:2362 181:3727 182:3399 183:2004 184:2264
185:20814 186:4960 187:4488 188:4075 189:4134 190:9416
191:1547 192:11021 193:9108 194:7505 195:5304 196:3183
197:2584 198:6049 199:7858 200:8053 201:6230 202:10497
203:10185 204:4602 205:3660 206:4502 207:3599 208:4169
209:5044 210:4640 211:2618 212:4325 213:3444 214:1070
215:49 216:6837 217:3003 218:1341 219:582 220:2046
221:1033 222:879 223:2244
End of report
More information about the sanog
mailing list